Gene flow contributes to diversification of the major fungal pathogen Candida albicans
Research output: Contribution to journal › Article › peer-review
Colleges, School and Institutes
- Université Paris Sud
- Center for Bioinformatics, BioStatistics and Integrative Biology (C3BI), USR 3756 IP CNRS, Institut Pasteur, 75015, Paris, France.
- Department of Mycology, Fungal Biology and Pathogenicity Unit, Institut Pasteur, INRA, 75015, Paris, France.
- Universitat Pompeu Fabra
- Department of Genomes and Genetics, Human Evolutionary Genetics Unit, UMR 2000 CNRS, Institut Pasteur, 75015, Paris, France.
- Biomics Pole, CITECH, Institut Pasteur, 75015, Paris, France.
- Stanford University
- University of Birmingham
- Univ. Evry, Univ. Paris-Saclay, 91000, Evry, France.
- CEA, Genoscope, Institut de biologie François Jacob, 91000, Evry, France.
- Public Health England
- University of Delhi
- Peking University
- Department of Laboratory Medicine, Chonnam National University Medical School, Gwangju, 61469, South Korea.
- EA1155 - IICiMed, Institut de Recherche en Santé 2, Université de Nantes, 44200, Nantes, France.
- IRCCS - Centro Neurolesi Bonino-Pulejo, 98124, Messina, Italy.
- Centre de Recerca Matemàtica, Edifici C, Campus de Bellaterra, 08193 Bellaterra, Barcelona, Spain; Departament de Matemàtiques, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain; ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain; Barcelona Graduate School of Mathematics (BGSMath), Barcelona, Spain.
- Université Paris Descartes
- Department of Mycology, Fungal Biology and Pathogenicity Unit, Institut Pasteur, INRA, 75015, Paris, France. email@example.com.
Elucidating population structure and levels of genetic diversity and recombination is necessary to understand the evolution and adaptation of species. Candida albicans is the second most frequent agent of human fungal infections worldwide, causing high-mortality rates. Here we present the genomic sequences of 182 C. albicans isolates collected worldwide, including commensal isolates, as well as ones responsible for superficial and invasive infections, constituting the largest dataset to date for this major fungal pathogen. Although, C. albicans shows a predominantly clonal population structure, we find evidence of gene flow between previously known and newly identified genetic clusters, supporting the occurrence of (para)sexuality in nature. A highly clonal lineage, which experimentally shows reduced fitness, has undergone pseudogenization in genes required for virulence and morphogenesis, which may explain its niche restriction. Candida albicans thus takes advantage of both clonality and gene flow to diversify.
|Publication status||Published - 8 Jun 2018|
- Microbial genetics, Pathogens, Population genetics